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v0.49.0

Mesh-LLM/mesh-llmv0.49.0Mar 27, 2026by michaelneale

AI Summary

A major release introducing the MCP plugin runtime, Rust SDK, and workspace restructure.

Key Highlights

  • Full MCP plugin runtime with protobuf IPC
  • New Rust plugin SDK (`mesh-plugin` crate)
  • KV efficiency fixes (Flash Attention default, `--ctx-size` flag)
  • Workspace restructure (Cargo root moved to repository root)
  • Richer peer events and bulk transfer support

New Features

  • MCP plugin runtime
  • Rust plugin SDK
  • KV efficiency improvements (Flash Attention, ctx-size)
  • Workspace restructure
  • Richer peer events

Full Release Notes

## What's new

- **Full MCP plugin runtime** — mesh-llm now ships a complete MCP v1 bridge for plugins, with protobuf IPC, tool/prompt/resource routers, and plugin supervision
- **Rust plugin SDK** — build native mesh-llm plugins in Rust with the new `mesh-plugin` crate
- **Plugin mesh visibility control** — plugins can reject startup based on mesh visibility
- **KV efficiency fixes** — fixed context size for split mode, added `--ctx-size` flag, enabled flash attention by default
- **Workspace restructure** — Cargo workspace root moved to repository root
- **Richer peer events** for plugins, bulk transfer support, broadened mesh event coverage
- **Relay coverage expanded** with node startup refactor

### Install (macOS Apple Silicon)

```bash
curl -fsSL https://github.com/michaelneale/mesh-llm/releases/latest/download/mesh-bundle.tar.gz | tar xz && mv mesh-bundle/* ~/.local/bin/
```